Usage patterns
楽器を演奏するto play a musical instrument (formal)
She played an instrument at the concert.
楽器を弾くto play an instrument (esp. strings or keyboard)
He practices playing an instrument every day.
楽器を習うto learn to play an instrument
As a child, I learned to play the piano.
楽器を吹くto play a wind instrument
He's good at playing the trumpet.
